I assume you know how to select text in general, so there are two possible
interpretations of "block":
1. If you mean a large portion of text that requires scrolling the screen,
click at one end of the desired selection, use the scroll bar to bring the
other end in view, and Shift+click there.
2. If you mean a vertical column portion of a wider block of text, use
Alt+drag to select it.
--
Suzanne S. Barnhill
Microsoft MVP (Word)
Words into Type
Fairhope, Alabama USA
http://word.mvps.org